2063 Bacchus (1977 HB)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3494289066 ± 2.00e+00
Semi-major axis (a)1.0779986113 AU ± 3.00e+00
Inclination (i)9.43469494° ± 4.00e+00
Long. of Asc. Node (Ω)33.03636030° ± 5.00e+00
Arg. of Perihelion (ω)55.35066867° ± 6.00e+00
Mean Anomaly (M)234.78705685° ± 2.00e-05
Mean Motion (n)0.8806127601°/day ± 3.68e+00
Perihelion dist (q)0.70131474 AU ± 2.91e+00
Aphelion dist (Q)1.45468249 AU ± 4.59e+00
Orbital Period1.11925051 yr ± 4.67e+00
NGA Modelr2
A2-3.62707582e-06 AU/d²
Physical Parameters
H (abs. magnitude)17.21
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-26
RMS Residual0.501″
Uncertainty0
Orbit TypeApollo
MOID0.067153 AU
Observations Used1463
Radar Obs Used7
Gaia Obs Used54
Oppositions4
Arc Total1977-2025
First Observation Used1977-04-24
Last Observation Used2025-06-15
Observations (1537)
Date Type RA Dec Mag Band Observatory
2024-05-13 21:12:15 C 13 05 42.065 -16 48 39.67 V M22
2024-05-13 21:16:51 C 13 05 41.801 -16 48 40.82 V M22
2024-05-13 21:36:49 C 13 05 40.682 -16 48 45.97 V M22
2024-05-13 21:44:47 C 13 05 40.248 -16 48 48.02 V M22
2024-05-13 22:54:51 C 13 05 36.970 -16 49 41.34 Z C23
2024-05-13 22:58:35 C 13 05 36.751 -16 49 42.20 Z C23
2024-05-13 23:03:02 C 13 05 36.415 -16 49 44.76 Z C23
2024-05-14 21:41:23 C 13 04 34.52 -16 55 37.6 X Y75
2024-05-14 22:15:47 C 13 04 32.79 -16 55 46.4 X Y75
2024-05-14 22:36:29 C 13 04 31.74 -16 55 51.9 X Y75
2024-05-18 19:41:00 C 13 01 15.71 -17 18 57.5 X G02
2024-05-18 19:47:09 C 13 01 15.53 -17 18 59.1 X G02
2024-05-18 19:53:19 C 13 01 15.31 -17 19 00.7 X G02
2024-05-19 19:36:40 C 13 00 39.59 -17 24 37.0 X G02
2024-05-19 19:43:03 C 13 00 39.38 -17 24 38.7 X G02
2024-05-19 19:49:12 C 13 00 39.22 -17 24 39.9 X G02
2024-05-25 21:50:24 C 12 58 46.186 -17 57 22.64 V M22
2024-05-25 21:55:06 C 12 58 46.145 -17 57 23.83 V M22
2024-05-25 22:09:27 C 12 58 46.058 -17 57 26.71 V M22
2024-05-25 22:59:06 C 12 58 45.689 -17 57 37.04 V M22
2024-05-25 23:12:42 C 12 58 45.595 -17 57 39.78 V M22
2024-05-27 04:28:42 C 12 58 43.402 -18 04 11.53 V W68
2024-05-27 04:32:48 C 12 58 43.375 -18 04 12.58 V W68
2024-05-27 04:40:45 C 12 58 43.363 -18 04 14.23 V W68
2024-05-27 05:14:53 C 12 58 43.267 -18 04 20.89 V W68
2024-05-28 03:18:05 C 12 58 45.941 -18 09 16.45 V W68
2024-05-28 03:22:42 C 12 58 45.924 -18 09 17.46 V W68
2024-05-28 03:30:38 C 12 58 45.922 -18 09 19.08 V W68
2024-05-28 03:46:39 C 12 58 45.895 -18 09 22.57 V W68
2024-05-28 21:35:40 C 12 58 50.107 -18 13 18.84 V M22
2024-05-28 21:39:47 C 12 58 50.119 -18 13 19.74 V M22
2024-05-28 21:47:39 C 12 58 50.119 -18 13 21.61 V M22
2024-05-28 22:02:45 C 12 58 50.124 -18 13 24.74 V M22
2024-05-29 20:58:18 C 12 58 58.841 -18 18 30.56 V M22
2024-05-29 21:03:02 C 12 58 58.853 -18 18 31.32 V M22
2024-05-29 21:10:24 C 12 58 58.872 -18 18 33.26 V M22
2024-05-31 02:21:57 C 12 59 14.585 -18 25 03.54 V W68
2024-05-31 02:27:49 C 12 59 14.633 -18 25 04.66 V W68
2024-05-31 02:52:35 C 12 59 14.741 -18 25 10.27 V W68
2024-05-31 03:16:12 C 12 59 14.892 -18 25 14.74 V W68
2024-06-01 02:43:54 C 12 59 31.248 -18 30 29.02 V W68
2024-06-01 02:48:37 C 12 59 31.270 -18 30 29.88 V W68
2024-06-01 02:56:07 C 12 59 31.346 -18 30 31.61 V W68
2024-06-01 06:43:27 C 12 59 34.834 -18 31 39.22 X F51
2024-06-01 07:00:16 C 12 59 34.957 -18 31 42.92 X F51
2024-06-01 07:17:01 C 12 59 35.083 -18 31 46.63 X F51
2024-06-05 07:43:28 C 13 01 15.888 -18 53 32.32 V T05
2024-06-05 07:47:31 C 13 01 15.965 -18 53 33.29 V T05
2024-06-05 07:55:29 C 13 01 16.097 -18 53 35.16 V T05
2024-06-05 08:13:21 C 13 01 16.421 -18 53 38.98 V T05
Radar Observations (19)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
1996-03-22 18:00:00 384093.223 2.3 Hz 8510 -14 -14
1996-03-22 20:10:00 87190665 15 us 8510 -14 -14
1996-03-22 22:50:00 86769151 2 us 8510 -14 -14
1996-03-22 22:50:00 371573.7 2 Hz 8510 -14 -14
1996-03-22.750000 38409322 200 Hz 8510 253 253
1996-03-22.840278 8719066500 15000 us 8510 253 253
1996-03-22.951389 8676915100 2000 us 8510 253 253
1996-03-24 17:50:00 324347 2 Hz 8510 -14 -14
1996-03-24 22:10:00 79673366 1 us 8510 -14 -14
1996-03-24 23:00:00 79562896 10 us 8510 -14 -14
1996-03-24.743056 32434700 200 Hz 8510 253 253
1996-03-24.923611 7967336600 1000 us 8510 253 253
1996-03-24.958333 7956289600 10000 us 8510 253 253
1996-03-29 19:30:00 96363 2 Hz 8510 -14 -14
1996-03-29.812500 9636300 200 Hz 8510 253 253
2012-09-13 11:31:00 -76858.4372 0.3 Hz 2380 -1 -1
2012-09-13 12:27:00 248520536.79 4 us 2380 -1 -1
2012-09-14 12:21:00 251520636.56 4 us 2380 -1 -1
2015-04-18 23:59:00 217913625.88 4 us 2380 -1 -1
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)